### Abstract

Structure of clusters of Yukawa particles is analysed by simulations and theoretical approaches in an isotropic environment which can be realized under microgravity or by active cancellation of the effect of gravity. Yukawa particles model dust particles in dusty plasmas and such an environment is suitable to observe their inherent properties. At low temperatures, clusters are composed of spherical shells and, when scaled by the mean distance, the structure seems to depend almost only on the system size or the number of particles. The positions and populations of shells are given by simple interpolation formulae. It is shown that shells have an approximately equal spacing close to that of triangular lattice planes in the bulk close-packed structures. When the cohesive energy in each shell is properly taken into account, the shell model reproduces these structures of spherical Yukawa clusters to a good accuracy.

Original language | English |
---|---|

Pages (from-to) | 4545-4548 |

Number of pages | 4 |

Journal | Journal of Physics A: Mathematical and General |

Volume | 39 |

Issue number | 17 |

DOIs | |

Publication status | Published - Apr 28 2006 |

### Fingerprint

### ASJC Scopus subject areas

- Physics and Astronomy(all)
- Statistical and Nonlinear Physics
- Mathematical Physics

### Cite this

*Journal of Physics A: Mathematical and General*,

*39*(17), 4545-4548. https://doi.org/10.1088/0305-4470/39/17/S36

**Structure of spherical Yukawa clusters.** / Totsuji, Hiroo; Ogawa, Takafumi; Totsuji, Chieko; Tsuruta, Kenji.

Research output: Contribution to journal › Article

*Journal of Physics A: Mathematical and General*, vol. 39, no. 17, pp. 4545-4548. https://doi.org/10.1088/0305-4470/39/17/S36

}

TY - JOUR

T1 - Structure of spherical Yukawa clusters

AU - Totsuji, Hiroo

AU - Ogawa, Takafumi

AU - Totsuji, Chieko

AU - Tsuruta, Kenji

PY - 2006/4/28

Y1 - 2006/4/28

N2 - Structure of clusters of Yukawa particles is analysed by simulations and theoretical approaches in an isotropic environment which can be realized under microgravity or by active cancellation of the effect of gravity. Yukawa particles model dust particles in dusty plasmas and such an environment is suitable to observe their inherent properties. At low temperatures, clusters are composed of spherical shells and, when scaled by the mean distance, the structure seems to depend almost only on the system size or the number of particles. The positions and populations of shells are given by simple interpolation formulae. It is shown that shells have an approximately equal spacing close to that of triangular lattice planes in the bulk close-packed structures. When the cohesive energy in each shell is properly taken into account, the shell model reproduces these structures of spherical Yukawa clusters to a good accuracy.

AB - Structure of clusters of Yukawa particles is analysed by simulations and theoretical approaches in an isotropic environment which can be realized under microgravity or by active cancellation of the effect of gravity. Yukawa particles model dust particles in dusty plasmas and such an environment is suitable to observe their inherent properties. At low temperatures, clusters are composed of spherical shells and, when scaled by the mean distance, the structure seems to depend almost only on the system size or the number of particles. The positions and populations of shells are given by simple interpolation formulae. It is shown that shells have an approximately equal spacing close to that of triangular lattice planes in the bulk close-packed structures. When the cohesive energy in each shell is properly taken into account, the shell model reproduces these structures of spherical Yukawa clusters to a good accuracy.

UR - http://www.scopus.com/inward/record.url?scp=33645719952&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645719952&partnerID=8YFLogxK

U2 - 10.1088/0305-4470/39/17/S36

DO - 10.1088/0305-4470/39/17/S36

M3 - Article

VL - 39

SP - 4545

EP - 4548

JO - Journal of Physics A: Mathematical and Theoretical

JF - Journal of Physics A: Mathematical and Theoretical

SN - 1751-8113

IS - 17

ER -